Elvers, B., Hawkins, S., & Schultz, G. (1991). Ullmann's encyclopedia of industrial chemistry edited by Barbara Elvers, Stephen Hawkins, Gail Schultz (5th, completely rev. ed.). VCH.
Chicago Style (17th ed.) CitationElvers, Barbara, Stephen Hawkins, and Gail Schultz. Ullmann's Encyclopedia of Industrial Chemistry Edited by Barbara Elvers, Stephen Hawkins, Gail Schultz. 5th, completely rev. ed. Weinheim: VCH, 1991.
MLA (9th ed.) CitationElvers, Barbara, et al. Ullmann's Encyclopedia of Industrial Chemistry Edited by Barbara Elvers, Stephen Hawkins, Gail Schultz. 5th, completely rev. ed. VCH, 1991.
Warning: These citations may not always be 100% accurate.